Shaft-bearing for grinding-mills.



0. & D. $011003. SHAFT BEARING FOR GRINDING MILLS.

APPLICATION FILED MAY 31, 1910.-

Patented Aug. 1, 1911.-

wuwwto a COLUMBIA PMNOGRAPH 60-, WASHINGTON, D. C.

CHARLES SCHOCH AND DARWIN SCHOCI'I, OF SAYLORSBURG, PENNSYLVANIA.

SHAFT-BEARING FOR GRINDING-MILLS.

Specification of Letters Patent.

Patented. Aug. 1, 1911.

Application filed May 31, 1910. Serial No. 564,272.

To all whom it may concern:

Be it known that we, CHARLES ScHooH and DARWIN SoHooH, citizens of theUnited States, residing at Saylorsburg, in the county of Monroe andState of Pennsylvania, have invented certain new and useful Improvementsin Shaft-Bearings for Grinding-Mills, of which the following is aspecification.

This invention has reference to bearings for the shafts of grindingmills wherein the stones are adapted to automatically move apart whenforeign matter such as nails, and the like, are carried therebetween,damage being thus prevented in the operation of the machinery.

In the drawings Figure 1 is a top plan view of certain parts of agrinding mill, the stones being shown in section; and Fig. 2 is asection taken on the line 6-6 of Fig. 1.

Referring to the drawings, 10 indicates the transverse bars of thesupporting frame of the mill, 11 suitable bearings, and 12 the mainshaft of the machine. The grinding stones 13 and 18 are mounted on theshaft 12, the stone 13 being stationary while the stone 18 is adapted torotate with the shaft 12. The stationary stone 13 is held in position bymeans of the strip 14 and fastenings 15, these parts not being materialto the invention. In the enlarged opening 16 of the stone 13, a bushing45 is secured and held in place by transverse ears 46 countersunk in thestone. A yoke 24 is secured to one of the bars 10- and has the adjustingscrew 25 mounted therein, the latter being adapted to operate a slide26.

The present invention resides particularly in the provision of anangular bracket 34 carried by the other bar 10 of the frame and locatedover the driving pulley 35 of the shaft 12. A bracket 36 is arrangedadjacent to the bracket 34 and secured to the adjacent bar 10 by thesame fastening means as that connecting the bracket 34 thereto. Thebracket 36 is provided with a groove in the under side of its horizontalportion and a vertical spring arm or member 37 is provided with anangularly-bent portion 38 which operates in the groove of the bracket36. The bent portion 38 is normally retained between the bracket 36 andthe bracket 34. A screw 39 connects the spring member 37 and thevertical portion 40 of the bracket 34 and provides a means for adjustingthe position of the member 37 relative to the part 40. A bearing 41 iscarried at the lower end of the spring member 37 and is supplied with asuitable oil cup 42. A bearing pin 43 having the conical portion 44 isinterposed between the parts 12 and 41. It is apparent that the springarm 37 will yield outwardly permitting separation of the stones 13 and18 for the purpose here inbefore referred to.

Having thus described the invention, what is claimed as new is:

1. In means of the class described, the combination of supports, a shaftmounted thereon, and a bearing-support for one end of said shaftcomprising an angular bracket carried by one of said supports, a secondbracket arranged on the angular bracket and engaging the lower portionof the lat ter, the first mentioned bracket having a downwardlyprojecting arm, a slide clamped between the lower portions of thebrackets aforesaid, and having a downwardly extending arm spaced fromthat of the first mentioned bracket, a bearing for said shaft carried bythe arm of the slide, and adjustable means connecting the downwardly eX-tending arm of the slide with the first mentioned bracket.

2. In means of the. class described, the combination of supports, ashaft mounted thereon, one end of the shaft projecting beyond one of thesupports, a pulley on said end of the shaft, an angular bracket securedto the support and provided with a clownwardly projecting arm at itsoutermost portion, a second bracket secured to the support above theangular bracket, and having its lower portion engaging the lower portionof the angular bracket and formed with a groove in its under side, aslide supported in In testimony whereof we allix our signasaid grooveand arranged between said tures 1n presence of two wltnesses. bracketssald slide having a downwardly Q I CHARLES SCHUCH. pio ectlng spring mm,a screw connecting DARWTIN SCHQCH i the downwardly projecting arm of theangnlar bracket and the spring arm of the lVit-nesses: slide, and abearing carried by said spring C. E. SI-IUPP, arm for said shaft. J. E.RASELEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

